Seiko Cal. 4593 - 678

The Seiko 4593-678 represents an important milestone in Seiko's 1984 lineup. Powered by the 4593 caliber with 34j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-6e58ecd47e43]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

White

Jewels

34j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1984

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